ASPxCardViewExportRenderingEventArgs.GetValue(String) Method
Returns the value of the specified cell within the processed card.
Namespace: DevExpress.Web
Assembly:
DevExpress.Web.v20.2.dll
NuGet Package:
DevExpress.Web
Declaration
public object GetValue(
string fieldName
)
Public Function GetValue(
fieldName As String
) As Object
Parameters
| Name |
Type |
Description |
| fieldName |
String |
A String value that specifies the name of the data source field.
|
Returns
| Type |
Description |
| Object |
An object that represents the specified cell’s value.
|
The processed card’s key value and handle are returned by the ASPxCardViewExportRenderingEventArgs.KeyValue and ASPxCardViewExportRenderingEventArgs.VisibleIndex properties, respectively. The processed cell’s value is returned by the ASPxCardViewExportRenderingEventArgs.Value property.
Example
This example conditionally applies a style to company names in an exported document based on the number of products. Company names are painted in ‘green’ if the product count is greater than 1,000. Otherwise, the company names are painted in ‘red’.
View Example
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using DevExpress.Web;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void ASPxCardViewExporter1_RenderBrick(object sender, DevExpress.Web.ASPxCardViewExportRenderingEventArgs e)
{
CardViewColumn dataColumn = e.Column as CardViewColumn;
if (dataColumn != null && dataColumn.FieldName == "ProductName")
{
e.BrickStyle.ForeColor = (decimal)e.GetValue("UnitPrice") > 10 ? Color.Green : Color.Red;
e.BrickStyle.BackColor = Color.LightYellow;
}
}
protected void ASPxButton1_Click(object sender, EventArgs e)
{
ASPxCardViewExporter1.WritePdfToResponse();
}
}
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="DevExpress.Web.v15.2, Version=15.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web" TagPrefix="dx" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<dx:ASPxCardView ID="ASPxCardView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" KeyFieldName="ProductID">
<Columns>
<dx:CardViewTextColumn FieldName="ProductName" VisibleIndex="0">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="UnitPrice" VisibleIndex="1">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="UnitsInStock" VisibleIndex="2">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="UnitsOnOrder" VisibleIndex="3">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="ProductID" ReadOnly="True" Visible="False">
</dx:CardViewTextColumn>
</Columns>
</dx:ASPxCardView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\nwind.mdb;Persist Security Info=True" ProviderName="System.Data.OleDb" SelectCommand="SELECT [ProductName], [UnitPrice], [UnitsInStock], [UnitsOnOrder], [ProductID] FROM [Products]"></asp:SqlDataSource>
<dx:ASPxCardViewExporter ID="ASPxCardViewExporter1" OnRenderBrick="ASPxCardViewExporter1_RenderBrick" runat="server" CardViewID="ASPxCardView1">
</dx:ASPxCardViewExporter>
<dx:ASPxButton ID="ASPxButton1" AutoPostBack="false" OnClick="ASPxButton1_Click" runat="server" Text="Export to PDF"></dx:ASPxButton>
</div>
</form>
</body>
</html>
<%@ Page Language="vb" AutoEventWireup="true" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<%@ Register Assembly="DevExpress.Web.v15.2, Version=15.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web" TagPrefix="dx" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<dx:ASPxCardView ID="ASPxCardView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" KeyFieldName="ProductID">
<Columns>
<dx:CardViewTextColumn FieldName="ProductName" VisibleIndex="0">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="UnitPrice" VisibleIndex="1">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="UnitsInStock" VisibleIndex="2">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="UnitsOnOrder" VisibleIndex="3">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="ProductID" ReadOnly="True" Visible="False">
</dx:CardViewTextColumn>
</Columns>
</dx:ASPxCardView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\nwind.mdb;Persist Security Info=True" ProviderName="System.Data.OleDb" SelectCommand="SELECT [ProductName], [UnitPrice], [UnitsInStock], [UnitsOnOrder], [ProductID] FROM [Products]"></asp:SqlDataSource>
<dx:ASPxCardViewExporter ID="ASPxCardViewExporter1" OnRenderBrick="ASPxCardViewExporter1_RenderBrick" runat="server" CardViewID="ASPxCardView1">
</dx:ASPxCardViewExporter>
<dx:ASPxButton ID="ASPxButton1" AutoPostBack="false" OnClick="ASPxButton1_Click" runat="server" Text="Export to PDF"></dx:ASPxButton>
</div>
</form>
</body>
</html>
Imports System
Imports System.Collections.Generic
Imports System.Drawing
Imports System.Linq
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports DevExpress.Web
Partial Public Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Protected Sub ASPxCardViewExporter1_RenderBrick(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxCardViewExportRenderingEventArgs)
Dim dataColumn As CardViewColumn = TryCast(e.Column, CardViewColumn)
If dataColumn IsNot Nothing AndAlso dataColumn.FieldName = "ProductName" Then
e.BrickStyle.ForeColor = If(CDec(e.GetValue("UnitPrice")) > 10, Color.Green, Color.Red)
e.BrickStyle.BackColor = Color.LightYellow
End If
End Sub
Protected Sub ASPxButton1_Click(ByVal sender As Object, ByVal e As EventArgs)
ASPxCardViewExporter1.WritePdfToResponse()
End Sub
End Class
See Also